156605662066 has 16 divisors (see below), whose sum is σ = 272144479104. Its totient is φ = 66197304864.

The previous prime is 156605662051. The next prime is 156605662069. The reversal of 156605662066 is 660266506651.

156605662066 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156605662066² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156605662069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76616230 + ... + 76618273.

It is an arithmetic number, because the mean of its divisors is an integer number (17009029944).

Almost surely, 2^156605662066 is an apocalyptic number.

156605662066 is a deficient number, since it is larger than the sum of its proper divisors (115538817038).

156605662066 is a wasteful number, since it uses less digits than its factorization.

156605662066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153234585.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 156605662066 in words is "one hundred fifty-six billion, six hundred five million, six hundred sixty-two thousand, sixty-six".